It's not a contest. Nor are artistic boundaries as black and white as those on maps.

Contest? Boundaries? You're still not making much sense. Maybe the costumes from the anime (mid-'70s) were influenced by 1950s movies. The live action film kept the general designs to please the fans. Also, the action and FX segments of the movie were judiciously brief. And if all you got out of the movie was the superficial dialog, then you missed the vast bulk of the movie.

I will grant that American-made movies are very popular elsewhere in the world—which is why multi-standard home video players are so common outside the US, but not in the US.

In college I met an Indian graduate student studying television production. I asked what led him to that US university. He asked, "Have you ever watched any Bollywood movies on TV some Sunday morning?"—meaning he didn't like them, either.

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"No, I better not look. I just might be in there."
—Foghorn Leghorn, Little Boy Boo